hey Thank you Adam for replying with some expert advice.
Firstly we can't get outside, as we're on the 4th floor. I was thinking of setting up colored bottles and stuff to block out the light, make it interesting. This light you mention in the bathroom. How does that work? Have the door open half way and put it behind and point it towards the camera so it shines through the door crack?
I can make the set look interesting by using fabrics, lots of piles of tea bags, crisp packets. Maybe get a massive picture for the wall. that could be funny. Nice huge print. Dunno if thats feasable tho.